Trimble 6848090 User Manual

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User Guide

Trimble

SNB900

Radio-Modem

Version 1.0 Revision B May 2005



Contact Information

Trimble Navigation Limited Geomatics and Engineering Division 5475 Kellenburger Road Dayton, Ohio 45424-1099 USA

+1-937-245-5600 Phone +1-937-233-9004 Fax www.trimble.com

Copyright and Trademarks

Trimble Navigation Limited, registered in the United States Patent and Trademark Office and in other countries. CMR, CMR+, MS750, SiteNet, TRIMCOMM, and TRIMMARK are trademarks of Trimble Navigation Limited.

Microsoft, Windows, and Windows NT are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.

All other trademarks are the property of their respective owners.

Release Notice

This is the May 2005 release (Revision B) of the Trim ble SNB900 Radio-Modem User Guide. It applies to version 1.0 of

the Trimble SNB900 radio-modem. The following limited warranties give you specific legal

rights. You may have others, which vary from state/jurisdiction to state/jurisdiction.

Hardware Limited Warranty

Trimble Navigation Limited warrants that this hardware product (the “Product”) will perform substantially in accordance with published specifications and be substantially free of defects in material and workmanship for a period of one (1) year starting from the date of delivery. The warranty set forth in this paragraph shall not apply to software products.

Software License, Limited Warranty

This Trimble software product, whether provided as a standalone computer software product, built into hardware circuitry as firmware, embedded in flash memory, or stored on magnetic or other media, (the “Software”) is licensed and not sold, and its use is governed by the terms of the relevant End User License Agreement (“EULA”) included with the Software. In the absence of a separate EULA included with the Software providing different limited warranty terms, exclusions and limitations, the following terms and conditions shall apply. Trimble warrants that this Trimble Software product will substantially conform to Trimble’s applicable published specifications for the Software for a period of one (1) year, starting from the date of delivery.

Warranty Remedies

Trimble's sole liability and your exclusive remedy under the warranties set forth above shall be, at Trimble’s option, to repair or replace any Product or Software that fails to conform to such warranty ("Nonconforming Product") or refund the purchase price paid by you for any such

Nonconforming Product, upon your return of any Nonconforming Product to Trimble in accordance with Trimble’s standard return material authorization procedures.

Warranty Exclusions and Disclaimer

These warranties shall be applied only in the event and to the extent that (i) the Products and Software are properly and correctly installed, configured, interfaced, maintained, stored, and operated in accordance with Trimble's relevant operator's manual and specifications, and; (ii) the Products and Software are not modified or misused. The preceding warranties shall not apply to, and Trimble shall not be responsible for defects or performance problems resulting from (i) the combination or utilization of the Product or Software with hardware or software products, information, data, systems, interfaces or devices not made, supplied or specified by Trimble; (ii) the operation of the Product or Software under any specification other than, or in addition to, Trimble's standard specifications for its products; (iii) the unauthorized, installation, modification, or use of the Product or Software; (iv) damage caused by accident, lightning or other electrical discharge, fresh or salt water immersion or spray; or (v) normal wear and tear on consumable parts (e.g., batteries). Trimble does not warrant or guarantee the results obtained through the use of the Product.

THE WARRANTIES ABOVE STATE TRIMBLE'S ENTIRE LIABILITY, AND YOUR EXCLUSIVE REMEDIES, RELATING TO PERFORMANCE OF THE PRODUCTS AND SOFTWARE. EXCEPT AS OTHERWISE EXPRESSLY PROVIDED HEREIN, THE PRODUCTS, SOFTWARE, AND ACCOMPANYING DOCUMENTATION AND MATERIALS ARE PROVIDED “AS-IS” AND WITHOUT EXPRESS OR IMPLIED WARRANTY OF ANY KIND BY EITHER TRIMBLE NAVIGATION LIMITED OR ANYONE WHO HAS BEEN INVOLVED IN ITS CREATION, PRODUCTION, INSTALLATION , OR DISTRIBUTION INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NONINFRINGEMENT. THE STATED EXPRESS OBLIGATIONS OR LIABILITIES ON THE PART OF TRIMBLE ARISING OUT OF, OR IN CONNECTION WITH, ANY PRODUCTS OR SOFTWARE. SOME STATES AND JURISDICTIONS DO NOT ALLOW LIMITATIONS ON DURATION OR THE EXCLUSION OF AN IMPLIED WARRANTY, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.

TRIMBLE NAVIGATION LIMITED IS NOT RESPONSIBLE FOR THE OPERATION OR FAILURE OF OPERATION OF GPS SATELLITES OR THE AVAILABILITY OF GPS SATELLITE SIGNALS.

WARRANTIES ARE IN LIEU OF ALL

Limitation of Liability

TRIMBLE’S ENTIRE LIABILITY UNDER ANY PROVISION HEREIN SHALL BE LIMITED TO THE AMOUNT PAID BY YOU FOR THE PRODUCT OR SOFTWARE LICENSE. TO THE MAXIM UM EXTENT PERMITTED B Y APPLICABL E LAW, IN NO EVENT SHALL TRIMBLE OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES WHATSOEVER UNDER ANY CIRCUMSTANCE OR LEGAL THEORY RELATING IN ANY WAY TO THE PRODUCTS, SOFTWARE AND ACCOMPANYING DOCUMENTATION AND MATERIALS, (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION , LOSS OF BUSINESS INFORMATION , OR ANY OTHER PECUNI ARY LOSS), REGARDLESS WHETHE R TRIMBLE HAS BEEN ADVISED OF THE POSSIBILITY OF ANY SUCH LOSS

AND REGARDLESS OF THE COURSE OF DEALING WHICH DEVELOPS OR HAS DEVELOPED BETWEEN YOU AND TRIMBLE. BECAUSE SOME STATES AND JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, THE ABOVE LIMITATION MAY NOT APPLY TO YOU.

NOTE: THE ABOVE LIMITED WARRANTY PROVISIONS MAY NOT APPLY TO PRODUCTS OR SOFTWARE PURCHASED IN THE EUROPEAN UNION. TRIMBLE DEALER FOR APPLICABLE WARRANTY INFORMATION.

Notices

Class B Statement – Notice to Users. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules, and Part 90 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communication. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

– Reorient or relocate the receiving antenna. – Increase the separation between the equipment and the

receiver.

– Connect the equipment into an outlet on a circuit

different from that to which the receiver is connected.

– Consult the dealer or an experienced radio/TV technician

for help. Changes and modifications not expressly approved by the manufacturer or registrant of this equipment can void your authority to operate this equipment under Federal Communications

PLEASE CONTACT YOUR

Before operating these radio-modems, users are legally required to obtain frequency licenses, as required by the country-of-use. Please contact your local communications governing agency for the licensing requirements for each of these radiomodems.

Safety

You must maintain a minimum separation distance of 21 cm (approximately 8in) between yourself and the radiating antenna for this device to satisfy the RF Exposure requirements of the FCC and Industry Canada. The antenna may not be co-located with any other transmitting device. For mobile operation, the maximum gain of the antenna must not exceed 5 dBi.

Trimble and the Environment

For product recycling instructions and more information, please go to www.trimble.com/environment/summary.html.

Europe

To recycle Trimble WEEE (Waste from Electrical and Electronic Equipment), do one of the following:

– call +31 497 53 2436, and ask for the WEEE

Associate

– mail a request to:

Trimble Europe BV c/o Menlo Worldwide Logistics Meerheide 455521 DZ Eersel, NL

Taiwan - Battery Recycling Requirements

The product contains a removable Lithium-Ion battery. Taiwanese regulations require that waste batteries are recycled.

Declaration of Conformity (Canada)

Company name Trimble Navigation Limited

Company number 1756

Company address Trimble Geomatics and Engineering Division

Model number SNB900

Specification code 1756A-48480

Specification RSS210

Issue 3

Band 650KG1D

Power 0.832 watt

From frequency 902.6 MHz

To fr eq u en c y 927.6 MHz

5475 Kellenburger Road Dayton, Ohio 45424-1099 USA

800-538-7800 (toll free in USA) +1-937-233-8921 Phone +1-937-233-9004 Fax

Safety

Safety 1

1.1

Warnings and Cautions

Always observe safety instructions that are presented in the following format:

1.2 Battery Safety

WARNING – A Warning alerts you to a possible hazard or unsafe practice

that could result in serious injury or property damage. A Warning describes how to protect people and/or equipment from this risk.

CAUTION – A Caution alerts you to a possible risk of damage to the equipment and/or loss of data. A Caution describes how to protect the equipment and/or data from this risk.

WARNING – Do not damage the rechargeable Lithium-ion battery. A

damaged battery can cause an explosion or fire, and can result in personal injury and/or property damage. To prevent injury or damage:

- Do not use or charge the battery if it appears to be damaged. Signs of damage include, but are not limited to, discoloration, warping, and leaking battery fluid.

- Do not expose the battery to fire, high temperature, or direct sunlight.

- Do not immerse the battery in water. /

- Do not use or store the battery inside a vehicle during hot weather.

- Do not drop or puncture the battery.

- Do not open the battery or short-circuit its contacts.

SNB900 Radio-Modem User Guide v

Safety

WARNING – Avoid contact with the rechargeable Lithium-ion battery if it

appears to be leaking. Battery fluid is corrosive, and contact with it can result in personal injury and/or property damage. To prevent injury or damage:

- If the battery leaks, avoid contact with the battery fluid.

- If battery fluid gets into your eyes, immediately rinse your eyes with clean water and seek medical attention. Do not rub your eyes!

- If battery fluid gets onto your skin or clothing, immediately use clean water to wash off the battery fluid.

WARNING – Charge and use the rechargeable Lithium-ion battery only in

strict accordance with the instructions. Charging or using the battery in unauthorized equipment can cause an explosion or fire, and can result in personal injury and/or equipment damage. To prevent injury or damage:

- Do not charge or use the battery if it appears to be damaged or leaking.

- Charge the Lithium-ion battery only in a Trimble product that is specified to charge it. Be sure to follow all instructions that are provided with the battery charger.

- Discontinue charging a battery that gives off extreme heat or a burning odor.

- Use the battery only in Trimble equipment that is specified to use it.

- Use the battery only for its intended use and according to the instructions in the product documentation.

1.3 Disposing of the Battery

vi SNB900 Radio-Modem User Guide

WARNING – The SNB900 radio-modem contains a Lithium-ion battery

and should not be disposed of with general refuse. Dispose of the SNB900 radio-modem in accordance with all local codes and regulations for products containing lithium ion batteries. Contact your local environmental control or disposal agency for further details.

1.4 Battery Consumption

Safety

1.5 Installing Antennas

1.6 Operation and Storage

CAUTION – Turbo mode increases power consumption by approximately 20%. If you work in Turbo mode, the battery will run down faster.

CAUTION – For your own safety, and in terms of the RF Exposure requirements of the FCC, always observe the precautions listed here.

-Always maintain a minimum separation distance of 21 cm (approximately 8 inches) between yourself and the radiating antenna on the SNB900 radio-modem.

- Do not co-locate the antenna with any other transmitting device.

- For mobile operation, do not allow the maximum gain of the antenna to exceed 5 dBi.

CAUTION – Do not operate or store the SNB900 radio-modem outside the temperature range specified. Doing so can damage the instrument.

SNB900 Radio-Modem User Guide vii

Safety

viii SNB900 Radio-Modem User Guide

1 Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . v

Warnings and Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Battery Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Disposing of the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi

Battery Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Installing Antennas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Operation and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . 1

Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Related Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Technical Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Your Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

2 Getting Started . . . . . . . . . . . . . . . . . . . . . 5

Frequency Band . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Front Panel Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Selecting a menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Main menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Cables and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Additional parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Optional accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

SNB900 Radio-Modem User Guide ix

Contents

Use and Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Use and care of the internal battery . . . . . . . . . . . . . . . . . . . . . . 14

3 Configuration and Installation . . . . . . . . . . . . 17

Configuring the SNB900 Radio-Modem Using the Front Panel Display . . . . 18

Status menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Network menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Mode menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Turbo Mode menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Port Configuration menu: LEMO Port Configuration and Modem Port

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Display Configuration menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Configuring the SNB900 Radio-Modem Using the WinFlash Utility . . . . . . 26

Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Upgrading the SNB900 Radio-Modem Firmware . . . . . . . . . . . . . . . . . . 32

Installing the SNB900 Radio-Modem in the Field . . . . . . . . . . . . . . . . . . 32

Important notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Installing the SNB900 radio-modem as a base. . . . . . . . . . . . . . . . 33

Installing the SNB900 radio-modem as a repeater . . . . . . . . . . . . . 34

Installing the SNB900 radio-modem as a rover . . . . . . . . . . . . . . . 35

Installing antennas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

4 Antenna Details . . . . . . . . . . . . . . . . . . . . 37

Omni-Directional Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

SNB900 Radio-Modem Antenna Range . . . . . . . . . . . . . . . . . . . . . . . . 38

Energy Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

5 Troubleshooting . . . . . . . . . . . . . . . . . . . . 41

Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Index . . . . . . . . . . . . . . . . . . . . . . . . . . 47

x SNB900 Radio-Modem User Guide

CHAPTER

Introduction 1

In this chapter:

Q Welcome

Q Related Information

Q Technical Assistance

Q Your Comments

1.1 Welcome

This manual describes how to set up, install, and use a Trimble® SNB900 radio-modem.

Even if you have used other radio-modems, Trimble recommends that you read this manual to learn about the special features of the product.

Tip – For an interactive look at GPS, go to the Trimble website at

www.trimble.com.

SNB900 Radio-Modem User Guide 1

1 Introduction

1.2 Related Information

Sources of related information include the following:

• Release notes

To read a summary of new and enhanced software features, read about small changes to the documentation, and receive step-bystep instructions for installing the software, open the release notes.

• Support page on the Trimble website

For additional information such as service bulletins and FAQs, go to www.trimble.com/support.shtml. The website also has related utility programs, firmware, and software patches that you can download.

• Trimble training courses

Consider a training course to help you use this GPS system to its fullest potential. For more information, go to the Trimble website at www.trimble.com/training.shtml.

• Extended warranty

For information about extended warranty programs for hardware and firmware, contact your local Trimble dealer.

1.3 Technical Assistance

If you cannot find the information you need, contact your local dealer. Alternatively, do one of the following:

• Request technical support:

a. Go to www.trimble.com.

b. Click the

Support button at the top of the screen. The

Support A–Z list of products appears.

c. Scroll to the bottom of the list.

d. Click the

submit an inquiry link. A form appears.

e. Complete the form and then click

• Send an e-mail to trimble_support@trimble.com.

2 SNB900 Radio-Modem User Guide

Send.

1.4 Your Comments

Your feedback about the supporting documentation helps us to improve it with each revision. Send an e-mail with your comments to ReaderFeedback@trimble.com.

Introduction 1

SNB900 Radio-Modem User Guide 3

1 Introduction

4 SNB900 Radio-Modem User Guide

CHAPTER

Getting Started 2

In this chapter:

Q Frequency Band

Q Features

Q Front Panel Display

Q Menus

Q Ports

Q Cables and Accessories

Q Use and Care

The rugged Trimble SNB900 radio-modem is packaged in a weatherproof housing, making it ideal for harsh environments, such as those associated with construction, seismic, and mining surveys. To establish a robust wireless data broadcast network for real-time differential and real-time kinematic GPS applications, use the versatile SNB900 radio-modem with a Trimble GPS rover.

SNB900 Radio-Modem User Guide 5

2 Getting Started

2.1 Frequency Band

The SNB900 radio-modem operates in the 902–928 MHz frequency band. It is certified for unlicensed use in this band as a transmitter, pursuant to 47 C.F.R. §§ 15.247, 15.249 (1993) (unlicensed, low-power devices) Subpart C of Part 15 of FCC Rules regarding Spread Spectrum Systems for the United States. License-free operation in Canada is covered by RSS-210 of Industrie Canada.

The SNB900 radio-modem is available with a reduced frequency range for use in Australia and New Zealand. It is available in single-frequency mode for use in other countries.

Note – The 902–928 MHz band is a shared-use band and as such is subject to interfering signals.

This frequency band is allocated to other uses, including cellular telephony, in other parts of the world. Regulations regarding its use vary greatly from country to country. Use of the radio-modem outside the United States, Canada, Australia, and New Zealand must be approved by the local radio authority. Contact your local radio communications governing authority for regulations and restrictions on operation in the country or area where you want to use the SNB900.

2.2 Features

The SNB900 radio-modem has the following standard features:

• Frequency :

– 902–928 MHz in USA/Canada

– 921–928 MHz in New Zealand

– 916–928 MHz in Australia

– Single-frequency configuration for specific countries

• +30 dBm (1 Watt)

• Frequency hopping on 50 channels

6 SNB900 Radio-Modem User Guide

Getting Started 2

• High-speed wireless data rate

• Interfaces with Trimble survey-grade and construction-grade

GPS receivers

• Rugged, weatherproof construction

• Internal battery

• Two-line, 16-character VFD display

• Compatible with Trimble CMR+

• Operational parameters configured using the WinFlash utility, a

™

and RTCM SC-104

handheld controller, or the front panel

• Can be configured as a base, repeater, or rover

• Compatible with TRIMCOMM

™

900, SiteNet™ 900 and SNR900 external radios, and Trimble 5700 and 5800 internal 900 MHz radios

Note – In this manual, CMR

™

and CMR+ formats are both represented by

CMR+.

SNB900 Radio-Modem User Guide 7

2 Getting Started

2.3 Front Panel Display

The front panel of the SNB900 radio-modem (see Figure 2.1) has a Vacuum Fluorescent Display (VFD) that shows the network frequency and radio status, as well as error messages.

Power LED

Power button

Figure 2.1 Front view of the SNB900 radio-modem

Front panel (display)

Down button

Up button

Logo showing location of Bluetooth antenna

Next button

8 SNB900 Radio-Modem User Guide

Getting Started 2

2.4 Menus

When you start the SNB900 radio-modem, the default Status menu screen is displayed on the front panel. This screen shows a summary of the radio-modem’s configuration settings.

24.1 Selecting a menu

To move to a different menu, press the  button on the front panel display. To scroll through the available settings in a menu, press the Up button

24.2 Main menus

or the Down button .



Ta bl e 2 .1 lists each main menu and describes its use.

Table 2.1 Main menus

Use this menu ... To ... For details, see ...

Status View information about the operation of the

radio.

Network Select an operating network for the radio-

modem. Each network has a unique hopping pattern to help reduce interference from nearby radio transmitters.

Mode Specify whether the radio-modem is to operate

as a base, a rover, or as one of up to four repeaters.

Turbo Mode Enable or disable Turbo mode. Use Turbo mode

in areas of high RF interference to improve performance.

Port Config LEMO Port Config Modem Port Config

Display Config Configure when the display will power down. page 25

Configure the settings for two of the ports that are on the back of the radio-modem (the sevenpin LEMO port and the 26-pin Modem port).

page 18

page 22

page 23

page 24

Note – The radio-modem unit settings determine which menus are available.

SNB900 Radio-Modem User Guide 9

2 Getting Started

Ta bl e 2 .2 lists the possible settings and the default setting for each main

menu.

Table 2.2 Settings

Main menu Options Default setting

Network 1–40 1

Mode BASE

Turbo Mode DISABLED

Port Config LEMO Port Config

ROVER REPEATER 1 REPEATER 2 REPEATER 3 REPEATER 4

ENABLED

4800 8-None-1 4800 8-Odd-1 4800 8-Even-1

9600 8-None-1 9600 8-Odd-1 9600 8-Even-1

19200 8-None-1 19200 8-Odd-1 19200 8-Even-1

38400 8-None-1 38400 8-Odd-1 38400 8-Even-1

57600 8-None-1 57600 8-Odd-1 57600 8-Even-1

115200 8-None-1 115200 8-Odd-1 115200 8-Even-1

BASE

DISABLED

38400 8-None-1

10 SNB900 Radio-Modem User Guide

Getting Started 2

Table 2.2 Settings (continued)

Main menu Options Default setting

Port Config Modem Port Config

Display Config Never Power Down

4800 8-None-1 4800 8-Odd-1 4800 8-Even-1

9600 8-None-1 9600 8-Odd-1 9600 8-Even-1

19200 8-None-1 19200 8-Odd-1 19200 8-Even-1

38400 8-None-1 38400 8-Odd-1 38400 8-Even-1

57600 8-None-1 57600 8-Odd-1 57600 8-Even-1

115200 8-None-1 115200 8-Odd-1 115200 8-Even-1

Idle Power Down PwrDwn on Battery

38400 8-None-1

Never Power Down

Tip – Before you operate the radio-modem for the first time, Trimble recommends that you change the Network setting from its default setting.This reduces the likelihood of interference from other radiomodems that may be operating with default settings.

Note – All radios in a single network must be configured to use the same network.

For more information about the SNB900 radio-modem menus and screens, see Chapter 3, Configuration and Installation.

SNB900 Radio-Modem User Guide 11

2 Getting Started

2.5 Ports

Figure 2.2 shows the location of three ports on the back panel of the

SNB900 radio-modem:

• a reverse polarity female TNC connector – the Radio-antenna

• a 26-pin D sub connector for power/data – the Modem port

• a seven-pin female LEMO 0-shell connector for power/data – the

port

LEMO port

Radio-antenna port Modem port LEMO port

ETHERNET

AUD

ERSE

REV POLARITY

VENT

External venting plug

Figure 2.2 Back view of the SNB900 radio-modem

12 SNB900 Radio-Modem User Guide

NOT REMOVE

: DO

2.6 Cables and Accessories

The SNB900 radio-modem equipment set includes:

• an antenna cable

• an antenna bracket

• a power supply

When the radio-modem is configured as a base:

• Data is received at the LEMO or 26-pin connector from a

Trimble GPS receiver. When the unit is configured as a repeater, no data connection is required.

• The unit is powered by an internal battery or by a suitable power

source, such as a stable DC power supply.

26.1 Additional parts

The radio-modem is supplied as a stand-alone product, but additional parts are available. For example, additional parts enable you to connect the SNB900 radio-modem to a Trimble MS750 GPS receiver.

Getting Started 2

™

, 5700, 5800, R7, or R8

26.2 Optional accessories

The following accessories can be purchased in addition to the standard system:

• 18 Ah battery with carry pouch (P/N 44103-18)

• Battery charger, 18 Ah (P/N 44111-00)

• 6 Ah battery with carry pouch and charger (P/N 34106-00)

• 10 Ah battery with carry pouch and charger (P/N 34107-00)

• 12 V fused power cable, 0S/7P/M LEMO to battery clips

(P/N 46125-00)

SNB900 Radio-Modem User Guide 13

2 Getting Started

2.7 Use and Care

The radio-modem is configured as a base or rover, and can be connected to most Trimble survey-grade and construction-grade GPS receivers through a single serial I/O cable and power cable. When used as a repeater, the radio-modem operates autonomously and requires only a power and antenna connection, with no connection to the serial port.

To achieve line-of-sight (LOS) coverage to all points in a survey area, an SNB900 radio-modem network can include repeaters. The rovers use the data packet from the base or repeater, whichever the rover receives first.

The radio-modem is designed to withstand rough treatment typical of equipment used in the field. However, it is a precision electronic instrument and should be treated with reasonable care. It operates at temperatures from –40°C through +65°C (–40°F through 149°F). The casing is sealed and weatherproof.

27.1 Use and care of the internal battery

14 SNB900 Radio-Modem User Guide

CAUTION – Do not operate or store the SNB900 radio-modem outside the

temperature range specified. Doing so can damage the instrument.

WARNING – Do not damage the rechargeable Lithium-ion battery. A

damaged battery can cause an explosion or fire, and can result in personal injury and/or property damage. To prevent injury or damage:

- Do not use or charge the battery if it appears to be damaged. Signs of damage include, but are not limited to, discoloration, warping, and leaking battery fluid.

- Do not expose the battery to fire, high temperature, or direct sunlight.

- Do not immerse the battery in water. /

- Do not use or store the battery inside a vehicle during hot weather.

- Do not drop or puncture the battery.

- Do not open the battery or short-circuit its contacts.